GM Service Manual Online
For 1990-2009 cars only
Table 1: Powertrain Control Module (PCM)
Table 2: Vehicle Theft Deterrent

Powertrain Control Module (PCM)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON, engine OFF

PCM / VCM in VTD Fail Enable

Engine Data 1

Yes/No

No

VTD Fuel Disable

Engine Data 1

Active/Inactive

Inactive

VTD Fuel Disable Until Ign. Off

Engine Data 1

Yes/No

No

Vehicle Theft Deterrent

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Ignition ON, engine OFF

GM Part Number

Module Information

Numeric

Varies

Fuel Enable

Inputs

Enabled/Disabled

Enabled

His. DTC Cyc. Counts

Data

Counts

Varies

Key Read Status

Inputs

No Key Read/Illegitimate Key Code/Valid Key Code/Invalid Key Code

Valid Key Code

Lock-Out Timer

Data

Seconds

0

Manufactures Enable Counter

Data

Counts

0

Passkey State

Inputs

Standby/Monitor Key Code/Bulb Test/Learn First Key/Tamper/No Coded Key/Learn More Keys/ Learn More Keys Standby/ALDL LMK Standby/ALDL Re-Learn Wait/ Re-Learn Wait/Re-Learn Pending Interaction/Re-Learn Interaction

Monitor Key Code

Prom ID

Module Information

Numeric

Varies

Relearn Counter

Data

Counts

Varies

Relearn Timer

Data

Seconds

0

Reset Counter

Data

0-10

Varies

Security Indicator Status

Inputs

On/Off

Off

Valid Key Code Counter

Data

0-10

2